FRV Scotia 3/81

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Scotia (749S)
Cruise identifier3/81
Cruise period1981-03-25 — 1981-04-13
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
Objectives1. To carry out an acoustic survey to the west of Britain to establish the abundance and distribution of the blue whiting spawning stock, as part of an ICES coordinated programme.
2. To identify echotraces and collect biological samples by way of directed midwater trawling. Not achieved.
3. To measure single fish echoes with the purpose of assessing target strength in situ.
4. To investigate the possible application of underwater photography to blue whiting identification and density determination; to record fish orientation by underwater flash to provide evidence for non-reaction in the dark. Only partially achieved.
5. To commission the new shipboard computer.
6. To prepare a documentary film to illustrate blue whiting trawling and sampling. Only partially achieved.
Chief scientistKevin Warburton (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Scotia 3/81 cruise report sc03_81.pdf (0.18 MB) 
Ocean/sea areas 
GeneralNorth Sea
North East Atlantic Ocean (limit 40W)
SpecificPorcupine Bank, continental slope northwest of Scotland, Rockall Bank, Rosemary Bank, Orkney
Track chartsFRV Scotia 3/81 cruise track — trk2697.html
Biology and fisheries 
Eggs and larvaeDescription: biomass determination
Acoustic reflection on marine organisms.Description: Attempts to identify blue whiting.